186 PROCEEDINGS OF THE ACADEMY OF [April, 



gium/as mentioned by Brunei', and also by the more robust caudal 

 femora. It is apparent from this material that the lower external 

 face of the caudal femora is not always black, specimens indistinguish- 

 able otherwise varying in this respect. In the cases where this is not 

 black, it is of the color of the external femoral face. The maculation 

 on the external face also varies in size and intensity. 



VILERNA stai. 

 1873. Vilerna Stal, Recensio Orthopterorum, I, pp. 3S, 71. 

 Type. — V. ceneo-oculata (De Geer). 



Vilerna rugulosa St&l. 



1878. Vilerna rugulosa Stal, Bihang till K. Svenska Veten.-Akad. Hand- 

 lingar, V, No. 4, p. 61. [Peru; Rio Janeiro.] 



1 9 . April, 1902. 



XIPHIOLA Bolivar. 

 1896. Xiphiola Bolivar, Actas Soc. Espau. Hist. Xat., XXV, p. 17. 

 Type. — A', cyanoptera Bolivar. 

 Xiphiola borellii Giglio-Tos. 



1900. X[iphiola] Borellii Giglio-Tos, Boll. Mas. Zool. Anat. Comp., XV, Xo. 

 377, p. 5. [Urucum, Brazil.] 



1 ? . May, 1902. 



This individual is slightly smaller than the specimen measured by the 



describer. 



SCHISTOCERCA Sti\l. 

 Schistocerca infumata Scudder, 



1899. Schistocei-ca infumata Scudder, Proo. Amer. Acad. Arts and Sci., 

 XXXIV, p. 457. [Monte^^deo, Uruguay; Brazil.] 



8 d", 10 9 . February and March, 1905. 



Wlien compared with the closely allied *S. flavofasciata (De Geer), the 

 form of the male cerci is found to be a good diagnostic character, these 

 being|broadly truncate in flavofasciata and distinctly, but not greatly, 

 tapering in infuinata. 



ATRACHELACRIS Giglio-Tos. 



1894. Atrachelacris Giglio-Tos, BoUett. Mus. Zool. Anat. Comp. Torino, 

 IX, No. 184, pp. 19, 20. 



Type. — A. unicolor Giglio-Tos. 



Atrachelacris unicolor Giglio-Tos. 



1894. Atrachelacris unicolor Giglio-Tos, Bollett. Mus. Zool. Anat. Comp. 

 Torino, IX, No. 184, p. 21. [Resistencia nel Cliaco, Argentina; Asuncion, 

 Paraguay.] 



6 (5^, 10 9 . January to March, 1905. 



This is unquestionably true A. imicolor, as comparison with the 



